Composite materials based on poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] and titanium dioxide are used in the optoelectronic and chemical industries. A study of the behavior of chemical bonds in the composite and of the influence exerted by an inorganic additive on its properties is topical. The physical properties of the composites are analyzed by IR (infrared) spectroscopy. All the experiments are performed in an oxygen atmosphere at room temperature. The spectral characteristics of the composite in the mid-IR spectral range are examined and the spectral absorption lines are identified. It is shown that the introduction of titanium dioxide into the polymer matrix does not cause intense oxidation processes within the composite. It is found that the main absorption lines characterizing the vibronic properties of titanium dioxide are not subject to spectral shifts within the polymer matrix.
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The study was financially supported by the Russian Foundation for Basic Research and Moscow Government (project no. 15-32-70017 “mol_a_mos”) and by the Grant Council of the President of the Russian Federation for State support of young Russian scientists and leading scientific schools (grant MD-2991.2017.3). The composites were developed and fabricated under the 2018 State assignment (research issue no. 45.5 “Development of compounds with prescribed physicochemical properties”).
Translated by M. Tagirdzhanov
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Belogorokhov, I.A., Belogorokhova, L.I. Optical Properties of Composite Materials Based on Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-Phenylenevinylene] and Titanium Dioxide in the Mid-IR Spectral Range. Semiconductors 53, 1999–2001 (2019). https://doi.org/10.1134/S106378261915003X
- IR spectroscopy
- composite materials